FR2103211A5 - - Google Patents

Info

Publication number
FR2103211A5
FR2103211A5 FR7126829A FR7126829A FR2103211A5 FR 2103211 A5 FR2103211 A5 FR 2103211A5 FR 7126829 A FR7126829 A FR 7126829A FR 7126829 A FR7126829 A FR 7126829A FR 2103211 A5 FR2103211 A5 FR 2103211A5
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7126829A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of FR2103211A5 publication Critical patent/FR2103211A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
FR7126829A 1970-07-23 1971-07-22 Expired FR2103211A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5766270A 1970-07-23 1970-07-23

Publications (1)

Publication Number Publication Date
FR2103211A5 true FR2103211A5 (en) 1972-04-07

Family

ID=22011985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7126829A Expired FR2103211A5 (en) 1970-07-23 1971-07-22

Country Status (3)

Country Link
US (1) US3639048A (en)
DE (1) DE2136707A1 (en)
FR (1) FR2103211A5 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813155A (en) * 1970-09-14 1974-05-28 Gaf Corp Automatic focusing system for projectors and the like
DE2102922C3 (en) * 1971-01-22 1978-08-24 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Arrangement for automatic focusing on objects to be viewed in optical devices
AR205243A1 (en) * 1972-05-11 1976-04-21 Philips Nv APPARATUS FOR READING A FLAT REFLECTOR RECORDING CARRIER
DE2225972A1 (en) * 1972-05-27 1973-12-13 Agfa Gevaert Ag AUTOMATIC FOCUSING DEVICE
DE2260474C3 (en) * 1972-12-11 1981-10-08 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Method and device for focusing a lens
NL7313454A (en) * 1973-10-01 1975-04-03 Philips Nv OPTO-ELECTRONIC SYSTEM FOR DETERMINING A KING BETWEEN THE ACTUAL POSITION OF A RADIANT REFLECTING PLANE IN AN OPTICAL IMAGE SYSTEM AND THE POSITION OF THIS PLANE.
US3917394A (en) * 1973-10-09 1975-11-04 Display Enterprises Inc Automatic component positioning device for optical system
US4032934A (en) * 1974-12-26 1977-06-28 Hendrickson Kenneth L Automatic focusing system
US3966315A (en) * 1975-01-30 1976-06-29 Hanimex Pty. Ltd. Lens focusing means for slide projectors
US4021821A (en) * 1976-10-01 1977-05-03 Honeywell Inc. Automatic focus control motive means
DE3047108A1 (en) * 1980-12-13 1982-07-29 Carl Braun Camera-Werk GmbH, 8500 Nürnberg Slid projection automatic focussing system - uses IR beam reflected from slide frame to control adjustment of focussing lens
DE3629771A1 (en) * 1986-09-02 1988-03-03 Demolux OVERHEAD PROJECTOR
US4743109A (en) * 1987-09-04 1988-05-10 Eastman Kodak Company Slide projector with automatic slide warpage compensation
JPH0177567U (en) * 1987-11-13 1989-05-25
US4843416A (en) * 1988-03-02 1989-06-27 W. Haking Enterprises Limited Autofocus camera system
DE3819163C2 (en) * 1988-06-04 1996-10-31 Leica Projektion Gmbh projector
US5434632A (en) * 1993-03-22 1995-07-18 U.S. Philips Corporation Image projection apparatus with a autofocusing system
JP2604213Y2 (en) * 1993-11-09 2000-04-24 旭光学工業株式会社 Focus correction device
US6588904B2 (en) * 2000-10-19 2003-07-08 Eastman Kodak Company System for compensating for film flutter in a motion picture projector
US6778277B2 (en) * 2001-05-24 2004-08-17 Eastman Kodak Company Apparatus and method to measure film motion in a film gate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249006A (en) * 1964-04-14 1966-05-03 Honeywell Inc Automatic focusing photographic projector
US3450883A (en) * 1965-02-03 1969-06-17 Conductron Corp Automatic focusing apparatus
US3536392A (en) * 1967-04-17 1970-10-27 Gaf Corp Automatic focusing system for image projecting devices

Also Published As

Publication number Publication date
US3639048A (en) 1972-02-01
DE2136707A1 (en) 1972-01-27

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Legal Events

Date Code Title Description
ST Notification of lapse